Which is ________ to write, a letter or an essay?

a) most easiest

b) more easy

c) easiest

d) easier

C

) easiest

The correct answer is (c) easiest. This is a comparative adjective question, asking which option is the most appropriate to use with the word "to write." To determine the correct answer, we need to compare the level of ease between writing a letter and writing an essay.

Comparative adjectives are used to compare two things, often by adding "-er" at the end of the adjective (e.g., bigger, faster). In this case, "easy" is an adjective that describes the level of difficulty, but it may not sound grammatically correct when we add "-er" to it (more easy or easier).

The most appropriate form is the superlative form, where the word "most" is added before the adjective (e.g., easiest, most beautiful). Therefore, the correct answer is (c) easiest.

The correct answer is:

c) easiest